1. ILC Reference Design Report, ILC-Report-2007-1, 2007.
2. H. Braun et al., CLIC 2008 Parameters, CERN, CLIC-Note-764, 2008.
3. Design Study of Compact ERL, KEK Report 2007-7, 2007.
4. The European X-ray Free Electron Laser Technical Design Report, DESY 2006-97, 2006.
5. Photocathodes for the energy recovery linacs